Toyota Corola Owner's Manual page 213

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Turning off both TRAC and VSC systems
To turn the TRAC and VSC systems off, press and hold
seconds while the vehicle is stopped.
The "TRAC OFF" indicator light and VSC OFF indicator light will come on.
Press again to turn the systems back on.
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When the "TRAC OFF" indicator light comes on even if the VSC OFF
switch has not been pressed
TRAC cannot be operated. Contact your Toyota dealer.
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Sounds and vibrations caused by the ABS, brake assist, TRAC and VSC
systems
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A sound may be heard from the engine compartment when the engine is
started or just after the vehicle begins to move. This sound does not indicate
that a malfunction has occurred in any of these systems.
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Any of the following conditions may occur when the above systems are
operating. None of these indicates that a malfunction has occurred.
• Vibrations may be felt through the vehicle body and steering.
• A motor sound may be heard after the vehicle comes to a stop.
• The brake pedal may pulsate slightly after the ABS is activated.
• The brake pedal may move down slightly after the ABS is activated.
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EPS operation sound
When the steering wheel is operated, a motor sound (whirring sound) may be
heard. This does not indicate a malfunction.
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Automatic reactivation of TRAC and VSC systems
After turning the TRAC and VSC systems off, the systems will be automati-
cally re-enabled in the following situations:
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Vehicles without a smart key system: When the engine switch is turned to
the "LOCK" position
Vehicles with a smart key system: When the engine switch is turned off
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If only the TRAC system is turned off, the TRAC will turn on when vehicle
speed increases
If both the TRAC and VSC systems are turned off, automatic re-enabling will
not occur when vehicle speed increases.
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Reduced effectiveness of the EPS system
The effectiveness of the EPS system is reduced to prevent the system from
overheating when there is frequent steering input over an extended period of
time. The steering wheel may feel heavy as a result. Should this occur, refrain
from excessive steering input or stop the vehicle and turn the engine off. The
EPS system should return to normal within 10 minutes.
COROLLA_TMMMS_TMMC_U (OM12F00U)
4-5. Using the driving support systems
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for more than 3
4